How to set boolean field for annotation

Question

I am learning Spring annotation

public @interface Autowired {
    boolean required() default true;
}

public @interface Lazy {
    boolean value() default true;
}

here is what I have:

@Autowired(false) - wrong
@Autowired(required=false) - correct

@Lazy(false)  - correct
@Lazy(value = false) - correct

Why Autowired(false) is wrong and @Lazy(false)is correct?

score 1 · Accepted Answer · answered Feb 15 '23 at 08:07

If there is attribute named value, then the name may be omitted, as in:

public @interface Lazy {
    boolean value() default true;
}

@Lazy(false)

If there is no attribute named value, you can assign a value by specifying it explicitly:

public @interface Autowired {
    boolean required() default true;
}

@Autowired(required = false)

To briefly exemplify; If the @Autowired annotation was as follows, you could use it like the @Lazy annotation.

public @interface Autowired {
    boolean value() default true;
}

@Autowired(false)

1 Answers1